Wood & Fiberglass Window Replacement cost: Altadena vs San Francisco (2026)
Budget-wise, wood and fiberglass window replacement in Altadena ($19,100) runs 9% less than in San Francisco ($20,900), a roughly $1,800 spread.
Altadena CA
Lower costTypically around $19,100
San Francisco CA
Typically around $20,900
Altadena vs San Francisco: full breakdown
| Factor | Altadena | San Francisco |
|---|---|---|
| Typical 2026 cost | $19,100 | $20,900 |
| Estimated range | $10,950–$27,200 | $12,000–$29,750 |
| Labor index (vs US) | ×1.08 | ×1.18 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $125 | $150 |
| Labor share | $10,500 | $11,500 |
| Materials/equipment | $8,600 | $9,400 |
These are 2026 planning figures for wood and fiberglass window replacement, localized to each city — not formal quotes.
How much should this gap actually matter?
A 9% gap is meaningful on a project this size — about $1,800. That's real money, but it's often within reach of off-season timing and a tighter apples-to-apples bid in San Francisco.
Wood and fiberglass window replacement by type: Altadena vs San Francisco
Below, each wood and fiberglass window replacement option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Altadena | San Francisco |
|---|---|---|
| Fiberglass | $10,950–$23,950 | $12,000–$26,200 |
| Composite | $12,050–$25,050 | $13,200–$27,400 |
| Aluminum-clad wood | $14,200–$29,400 | $15,550–$32,150 |
| Solid wood | $15,300–$32,650 | $16,750–$35,700 |
Wood and fiberglass window replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Wood and fiberglass window replacement by number of windows: Altadena vs San Francisco
Wood and fiberglass windows are a premium upgrade — figure roughly $800–$2,500 per window installed depending on material, size, and finish. Cost scales with the number of openings, and wood typically runs higher than fiberglass.
| Size | Altadena | San Francisco |
|---|---|---|
| 5 windows | $5,000–$12,050 | $5,500–$13,200 |
| 10 windows | $9,900–$21,800 | $10,800–$23,850 |
| 15 windows | $14,750–$30,450 | $16,150–$33,300 |
| 20 windows | $19,650–$39,150 | $21,500–$42,800 |
| 25+ windows (whole home) | $23,950–$48,900 | $26,200–$53,450 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
What windows pros earn in each metro
With labor making up about 55% of a wood and fiberglass window replacement job, wage differences between metros do most of the work here. These figures are real BLS OEWS installer wages, not modeled estimates.
Los Angeles-Long Beach-Anaheim metro · about 15% above the US average installer wage.
San Francisco-Oakland-Fremont metro · about 34% above the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for wood and fiberglass window replacement in either city
Two things line up in fall and winter: installers have open calendars and need the work, and manufacturers run their best promotions of the year. Buy then and you get both breaks at once.
How much should new windows really cost you?
Frame material, glass package and install type decide the price. Our editors on what's worth paying for.
The efficiency case
In extreme climates, triple-pane or premium low-E/gas-fill glass pays back in comfort and bills — and ENERGY STAR units may unlock rebates. Spend on the glass package before the frame upgrade.
The install case
A perfect window installed badly leaks and fails. Full-frame replacement with proper flashing beats a cheap pocket insert in a rotted opening — match the install method to your home's condition, not just the price.
The value case
Vinyl, double-pane, low-E windows deliver most of the comfort and efficiency for the lowest price. For whole-home replacements on a budget, they're the sensible default.
Vinyl frames are the sensible default unless your situation says otherwise; the glass package is where climate-specific spending pays off. Install quality is the one place a discount always costs more later.
Altadena vs San Francisco
Is wood and fiberglass window replacement cheaper in Altadena or San Francisco?
In 2026, wood and fiberglass window replacement is cheaper in Altadena at about $19,100, versus $20,900 in San Francisco — a difference of about $1,800 (9%).
Why does wood and fiberglass window replacement cost more in San Francisco than Altadena?
The main driver is local labor rates: San Francisco's labor index is 1.18 versus 1.08 in Altadena. Climate zone (mixed vs mixed) and permit fees also shift the total.
How much is wood and fiberglass window replacement in Altadena, CA?
Altadena homeowners can expect $10,950 to $27,200 for wood and fiberglass window replacement in 2026, with $19,100 the typical number.
Do windows pros really charge more in one city?
They do, and the BLS wage data confirms it: installers earn about $35.9/hr around Los Angeles-Long Beach-Anaheim versus $41.6/hr near San Francisco-Oakland-Fremont. With labor making up about 55% of a wood and fiberglass window replacement job, that difference carries straight through to the final price.
When is the cheapest time to buy wood and fiberglass window replacement — and does it differ by city?
No, the seasonal pattern is the same in Altadena and San Francisco: book during Late fall and winter for about 5–15% in savings. Spring and summer peak is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on wood and fiberglass window replacement cost?
Rarely. The $1,800 difference is real but one-time, and you can often close most of it in San Francisco by buying in the off-season and getting tighter, apples-to-apples bids. Ongoing factors — energy prices, climate and home condition — matter more over the life of the system.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik